32 FUMIGATION OF APPLES FOR SAN JOSE SCALE. 
CONCLUSIONS AND RECOMMENDATIONS. 
The data presented point out, it is believed, the practicability of 
destroying the San Jose scale on apples and suggests the desirability of 
the adoption of the practice of fumigation by exporters if such treat- 
ment will result in the acceptance by foreign countries of fruit so treated. 
A certificate of proper fumigation on each barrel, box, or package 
should constitute a sufficient guaranty that any scales present had 
been killed. It is considered probable that, if desirable, fumigation 
could be practiced in the case of numerous fruits, as pears, oranges, 
lemons, etc. In fact, the writer understands that it has been the 
practice of the California state board of horticulture to fumigate such 
fruit when desirable during the past several years. 
In the fumigation of apples in barrels it would appear sufficient 
to remove the upper head only, or to use for the original heading 
boards with numerous ? or 1 inch auger holes—a total of 15 or 20 
at each end. Fruit packed in usual commercial boxes, wrapped or 
unwrapped, would need no special preparation, as the openings 
between the several slats would allow sufficient gas to enter. 
